Arc Detection/Interruption; Power Line Communication (Plc) Transmitter - Fronius Symo Advanced 10.0-3 208-240 Operating Instructions Manual

NOTE!
Automatic reconnection no longer occurs after the device is disconnected from the
grid five times as a result of exceeding the defined leakage current value.
The State Code 607 shown on the display must be acknowledged to reconnect.
Insulation monitoring of ungrounded solar modules
In the case of grid connected photovoltaic systems with ungrounded solar modules, the in-
verter checks the insulation resistance between the positive and negative pole in relation
to the earth potential before energy is fed into the grid. The inverter issues a state code if
the insulation resistance is too low. The inverter is therefore not permitted to start feeding
energy into the grid.
Arc detection/in- The inverter is equipped with integrated arc detection/interruption, which detects and ex-
terruption tinguishes serial arcs.
For example, a serial arc can occur after the following errors or situations:
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If a serial arc is detected, the power is switched off and the grid power feed operation is
interrupted. A state code is shown on the display. The state code on the display must be
manually reset before the grid power feed operation can be resumed.
The power shutdown also extinguishes the serial arc.
NOTE!
This product is equipped with a communication interface in line with the "Commu-
nication Signal for Rapid Shutdown - SunSpec Interoperability Specification".
Power optimizers and other MLPE features in the photovoltaic system can impair the cor-
rect functioning of the arc detection/interruption. When using these kinds of components,
the system installer is responsible for ensuring the correct functioning of the arc detection/
interruption. Contact your Fronius Technical Support for more information.
Power Line Com- This inverter is equipped with a Power Line Communication (PLC) Transmitter on the DC
munication (PLC) side.
Transmitter The purpose is to provide Rapid Shutdown acc. to NEC Edition 2017 Art. 690.12. The PLC
is implemented according to the Specification "Communication Signal for Rapid Shutdown
- SunSpec Interoperability Specification". Details can be found at www.sunspec.org
To ensure compliance with all regulations applicable in your country and to provide best
reception at the receivers, please follow the recommendations below:
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Poorly-connected plug connections on the solar module
Poor or defective cable connections on the solar module side, which enable a connec-
tion against the earth potential
Defective solar modules due to problems in the junction box or production errors, such
as high resistance solder connections in individual solar cells
Cables incorrectly connected to an inverter's input terminals
Keep distance between DC+ and DC- Conductors as close as possible
Avoid cable loops of excessive cables (coiling).
Use metallic raceways where possible
Do not run DC cables from different inverters in the same raceway or cable tray.
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